refactor(dotfiles): rename system/ to common/ and remove unused configs

Rename dotfiles/system to dotfiles/common for clarity - indicates
shared dotfiles used across all desktop environments (DWM, Hyprland).

Removed config directories for uninstalled applications:
- ghostty (using different terminal)
- lf (using ranger instead)
- mopidy (using mpd instead)
- nitrogen (X11-only, obsolete for Wayland)
- pychess (not installed)
- JetBrains (not installed via archsetup)
- youtube-dl (using yt-dlp with different config location)

Kept audacious config for potential future use.

Updated all references in archsetup, CLAUDE.md, todo.org, and
validation.sh.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 0 insertions, 74 deletions

diff --git a/dotfiles/system/.zsh/modules/Config/installfns.sh b/dotfiles/system/.zsh/modules/Config/installfns.sh
deleted file mode 100755
index 149f359..0000000
--- a/dotfiles/system/.zsh/modules/Config/installfns.sh
+++ /dev/null
@@ -1,74 +0,0 @@
-#!/bin/sh
-
-fndir=$DESTDIR$fndir
-scriptdir=$DESTDIR$scriptdir
-
-/bin/sh $sdir_top/mkinstalldirs $fndir || exit 1;
-
-allfuncs="`grep ' functions=.' ${dir_top}/config.modules |
-  sed -e '/^#/d' -e '/ link=no/d' -e 's/^.* functions=//'`"
-
-allfuncs="`cd $sdir_top; echo ${allfuncs}`"
-
-test -d installfnsdir || mkdir installfnsdir
-
-# We now have a list of files, but we need to use `test -f' to check
-# (1) the glob got expanded (2) we are not looking at directories.
-for file in $allfuncs; do
-  if test -f $sdir_top/$file; then
-    case "$file" in
-      */CVS/*) continue;;
-    esac
-    if test x$FUNCTIONS_SUBDIRS != x && test x$FUNCTIONS_SUBDIRS != xno; then
-      case "$file" in
-      Completion/*/*)
-        subdir="`echo $file | sed -e 's%/[^/]*/[^/]*$%%'`"
-        instdir="$fndir/$subdir"
-        ;;
-      Completion/*)
-        instdir="$fndir/Completion"
-        ;;
-      Scripts/*)
-        instdir="$scriptdir"
-	;;
-      *)
-        subdir="`echo $file | sed -e 's%/[^/]*$%%' -e 's%^Functions/%%'`"
-        instdir="$fndir/$subdir"
-        ;;
-      esac
-    else
-      case "$file" in
-      Scripts/*)
-        instdir="$scriptdir"
-	;;
-      *)
-        instdir="$fndir"
-        ;;
-      esac
-    fi
-    basename=`basename $file`
-    ok=0
-    if test -d $instdir || /bin/sh $sdir_top/mkinstalldirs $instdir; then
-      if sed "s|@runhelpdir@|$runhelpdir|" <$sdir_top/$file \
-        >installfnsdir/$basename; then
-	if $INSTALL_DATA installfnsdir/$basename $instdir; then
-	  ok=1
-	fi
-      fi
-    fi
-    case $ok in
-      0)
-      rm -rf installfnsdir
-      exit 1
-      ;;
-    esac
-    read line < $sdir_top/$file
-    case "$line" in
-      '#!'*)
-      chmod +x $instdir/`echo $file | sed -e 's%^.*/%%'`
-      ;;
-    esac
-  fi
-done
-
-rm -rf installfnsdir